Average annual temperature is 13.5 °C
Absolute maximum temperature: 36.3 °C
Absolute minimum temperature: -10.5 °C
Number of sunny days: 180 days
Number of rainy days: 181 days
Number of snow days: 4 days
Look at detailed online map of Borough of Collegeville
* Weather data for Borough of Collegeville United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 19.2 | 19.0 | 19.3 | 31.0 | 30.8 | 35.9 | 34.5 | 32.3 | 36.3 | 28.6 | 21.8 | 17.2 |
| Average daytime temperature (°C) | 9.2 | 10.1 | 11.4 | 20.3 | 23.5 | 27.5 | 31.1 | 28.9 | 25.4 | 20.4 | 12.1 | 9.6 |
| Average temperature (°C) | 5.1 | 4.7 | 5.6 | 13.5 | 16.3 | 20.8 | 24.9 | 23.3 | 20.0 | 14.6 | 6.6 | 5.2 |
| Average night temperature (°C) | 1.7 | 0.2 | 0.7 | 8.0 | 9.4 | 14.8 | 19.9 | 18.7 | 15.7 | 9.9 | 2.2 | 1.5 |
| Absolute minimum temperature (°C) | -4.5 | -10.5 | -4.8 | -0.7 | 3.9 | 9.7 | 15.7 | 14.6 | 10.1 | 3.6 | -4.6 | -3.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 15.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 12.0 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 9.4 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 4.7 | 6.8 | 7.4 | 9.0 | 11.6 | 10.7 | 11.6 | 10.2 | 8.0 | 8.3 | 7.7 | 4.6 |
| Precipitation (mm) | 99 | 46 | 91 | 139 | 29 | 116 | 123 | 60 | 172 | 39 | 62 | 177 |
| Sunny days | 12 | 16 | 12 | 14 | 20 | 12 | 10 | 13 | 14 | 20 | 20 | 17 |
| Rainy days | 19 | 10 | 18 | 16 | 11 | 18 | 21 | 18 | 16 | 11 | 9 | 14 |
| Snow days | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
The best time to visit Borough of Collegeville during the most sunny months:
The largest precipitation sum in Borough of Collegeville is at